1 /* 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. 3 * Copyright (C) 2006 Michael Emmel mike.emmel (at) gmail.com 4 * Copyright (C) 2007 Alp Toker <alp.toker (at) collabora.co.uk> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 16 * its contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "GlyphPageTreeNode.h" 33 34 #include "SimpleFontData.h" 35 #include <cairo-ft.h> 36 #include <cairo.h> 37 #include <fontconfig/fcfreetype.h> 38 39 namespace WebCore { 40 41 bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData) 42 { 43 // The bufferLength will be greater than the glyph page size if the buffer has Unicode supplementary characters. 44 // We won't support this for now. 45 if (bufferLength > GlyphPage::size) 46 return false; 47 48 FT_Face face = cairo_ft_scaled_font_lock_face(fontData->platformData().scaledFont()); 49 if (!face) 50 return false; 51 52 bool haveGlyphs = false; 53 for (unsigned i = 0; i < length; i++) { 54 Glyph glyph = FcFreeTypeCharIndex(face, buffer[i]); 55 if (!glyph) 56 setGlyphDataForIndex(offset + i, 0, 0); 57 else { 58 setGlyphDataForIndex(offset + i, glyph, fontData); 59 haveGlyphs = true; 60 } 61 } 62 63 cairo_ft_scaled_font_unlock_face(fontData->platformData().scaledFont()); 64 65 return haveGlyphs; 66 } 67 68 } 69
